Home / 2,968.40-4,456.20-2,946.80

Finding the Fourth Proportional to 2,968.40, 4,456.20 and 2,946.80

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Solution

The fourth proportional to 2,968.40, 4,456.20 and 2,946.80 is: 4,423.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,968.40 : 4,456.20 = 2,946.80 : x
  2. Step 2: Convert to fraction form
    2,968.40/4,456.20 = 2,946.80/x
  3. Step 3: Cross multiply
    2,968.40x = 4,456.20 × 2,946.80
  4. Step 4: Simplify right side
    2,968.40x = 13,131,530.16
  5. Step 5: Solve for x
    x = 13,131,530.16/2,968.40
  6. Step 6: Final answer
    x = 4,423.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.